David Homer Bates

David Homer Bates (3 July 1843-14 June 1926) was the chief chronicler of President Abraham Lincoln's telegraph operations.

Biography
David Homer Bates was born in Steubenville, Jefferson County, Ohio in 1843, and he served as a cypher clerk and telegrapher at the War Department in Washington DC throughout the American Civil War. He developed a reputation for creating unbreakable message codes and for breaking Confederate codes, and he was in daily contact with Secretary of War Edwin Stanton and President Abraham Lincoln. He died in Manhattan in 1926.